Cable-cldssbura



C. E. MDRGAN.

CABLE CLIMBING DEVICE FOR MINERS.

APPLICATION FILED MAR. I8. 1919.

Patented July 22, 1919.

2 SHEETS-8HEET I.

INVENTOR. 627M015 6/24;

W1 TNESSES n m T T. A

(L E. MORGAN.

CABLE CLIMBING DEVICE FOR MINERS.

APPLICATION FILED MAR-18.19l9.

m MN H 1T T... N 2H MG M Y VM W IH QW M A U 0% C 2 H M M Y P B a m F 0, m l M 1 T. 0 3 4 M J 1L comprising trolled by a brake An additional object is the provision of a vice,

CHARLES EDWARD MORGAN, OF RINCON NEW MEXICD.

CABLE-CLIMBING :onvrcn roe mamas.

Specification of Letters Patent.

Application filed March 1a, 1919. Serial no. 288,484.

To all whom it may concern:

Be it known that I, CHARLES MoReAN a citizen of the United States, resldmg at Rmcon,in the county of Dona 'Ana and State of New Mexico, have invented new and useful Improvements in Cable-Climbing Devices for Miners, ofwhich the followlng is a specification.

This invention relates to cable hoists; particularl to cable climbing devices and has for its 0 ject the provision of a device wh ch is manually operated and by means of which an operator may quickly and easlly ascend or descend a cable hanging vertically, the

device being particularly adapted for use by prospectors and miners for enabllng them to gain access to veins of ore located in the walls of precipices, cafions and the hke.

An important and more specrfic ob ect s the provision of a device of this character a supporting frame havmg disposed therein plurality of drums engaging the cable and provided with 0t her drums about which is trained a chain which 1s manually movable for rotating the drums to cause the device to travel up or down upon the cable, the invention further comprising the provision of brake means whereby descent of the device may be accomplished" at any desired speed at the will of the operator.

A further object is the provision of a device of this character embodying a platform upon which a plurality of operators may be seated in safety while working upon a precipitous wall.

Another object is the provision of a device of this character including in its construction a safety catch which will prevent accidental descent, the oatch'being releasable whereby the device may be permltted to descendgravitationall the descent being conrum.

device of this character which will be comparatively simple and inexpensive in manufacture, highly eflicient in service, durable in use and a eneral improvement in the art.

With the 9, ve and other objects and advantages in view, the invention consists in the details of construction to be-herein-after more fully described and claimed, and illustrated in the accompanying drawings in which I Figure 1 is'a front elevation of the dc sprocket 17 shaft 15. The

:and 16, as shown,

F g. 2 is a side elevation,

F g. 3 1s a longitudinal sectional view 100 ngtoward one slde plate ofthe device, F 1g. 4 1s a similar longitudinal sectional view looking at the other side plate of the device,

Fig. 5 is a longitudinal sectional viewtaken at right angles to Figs. 3 and 4, and

Flg. 6 is a cross sectional view taken above the platform. Referring more particularly to the draw-. lugs, the numerals 10 and 11 designate upper and lower housing members which are connected by side plates- 12 and 13 suitably bolted thereto. The bolts 14. securing the s1de plates to the lower housing member 11 extend beyond the side members as shown for a purpose to be described.

Extending transversely through the lower housing member 11 and through the side plates 12 and 13 is a shaft 15 upon which is journaled a drum 16 having a serrated perlphery. Also mounted upon the shaft 15 at one side of the drum 16' is a relatively large and disposed at the other side of the drum 16 is a brake drum 18. The drum 16, sprocket 17, and brake drum 18 are either formed. integral so that they will rotate together upon the ends of the shaft 15 extend beyond the side plates 12 and 13 and are preferably provided with nuts 19.

pair of platforms 20 are arranged at opposite sides of the frame and have their arms 21 arranged in straddling relation to engagement with the edges of the lower housing member 11.

Extending transversely throu' h the upperhousing member 10 and the si e plates 12 and 13 is a shaft 22 upon which is journaled a drum 23 having a serrated surface. The cable 24 extends through holes 25 formed in the upper and lower housing members 10 and '11 and is trained about the drums 23 the serrations on the eripheries of these drums preventing slippm of'the cable. Also disposed upon the sha Patented July 22, 1919.,

1y .or are secured together trained a chain 27 which is also trained about the sprocket 17. By virtue of this chain andsprocket connection the drums 16 and 23 will rotate in the same direction at the same speed.

Extending transversely through the side plates 12 and 13 is. a rod 28 upon which is pivotally mounted a lever 29 to one end of which is gonnected a brake band 30 which extends partially around the brake drum 18 and which has its other end secured to a post 31 extending inwardly from the side plate holding ore removed from the Wall. When it is desired to descend the'cable, it is first necessary that an operator grasp the lever 29 and exert considerable pressure thereon so as to contract the band 30 about the brake drum 18, after which the pawl 32 is swung upon its pivot out of engagement with the teeth of the sprocket 17.. By then relieving a portionof the pressure upon the lever 29 the devicemay be allowed to descend the cable gradually.

From the oregoing description and a study of the drawings it will be apparent that I have thus provided a simple and elli- 12. When pressure is applied upon the le-\cient device by means of which ascent or ver 29' the band 30 will be pressed into engagement with the drum 18 so as to limit the speed of rotation of the drum 13, drum 16 and sprocket 17.

In order to provlde a safety catch I provide a pawl 32 pivoted upon the rod 28 adjacent the side plate 13 and arranged with its active ends normally engageable with the teeth of the sprocket 1 The operation of the device is as follows :The upper end of the cable 24 is suitably secured at the top of a precipitous wall to be operated upon and the lower end has secured thereto a suitable heavy weight in order that the cable will be held taut at' all times. With the parts of the device ar ranged as shown and described, the operators l or 2, seat themselves upon the latforms 20. The operator upon one plat orm pulls upon the chain 27 in adownward direction and the operator upon the opposite platform pulls upon the chain in an up-' ward direction in order to effect rotation of the sprockets 17 and 26 which will result in rotation of the drums 1-6 and 23. As these drums rotate the device will travel upwardly along the cable. As the sprocket 17 rotates it rides under the pawl 32 which gravitationally bears against the teeth of the sprocket. In case the operators cease to pull upon the chain 27 any tendency toward reverse movement of the sprocket 17 will result in engagement of one of'the teeth thereof with the pawl 32 so as" to revent the device from descending the ca 1e. When the opera-tors are seated upon the platform.

20, the projecting ends of thebolts 14 will serve as footholds whereby they may brace themselves so as to pull more effectually upon the chain 27. It will thus be seen that by pulling upon the chain 2! the cable may be quickly and easily climbed and that as soon as the device has reached the desired height the pawl 32 will operate to prevent descent thereofso that the operators may conveniently work upon the wall before them. For the sake of convenience I preferably employ a bag or other similar receptacle 33 secured upon either of the side plates and adapted for holding tools or for descent of a cable may be quickly and easily made, the construction of the device being such that it will be safe in its operation and will remain in any desired position so that operators seated thereon may work safely upon the face of a wall. While the invention is primarily designed for the use of prospectors and miners in working upon precipitous walls or gaining access to veins of ore therein, it will be readily understood that the device is equally adapted for use by painters and in fact by others finding it o necessary to work up'on precipitous walls.

While I have shown and described the preferred embodiment of theinvention, it will of course be readily understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the invention nor the scope of the subjoined claims.

Having thus described my invention I claim v 1. A device of the character described comprising upper and lower housing members, side plates secured to and connecting said members, drums journaled in said uper and lower housing members, sprockets ournaled within said housing members and rotatable with said drums, a chain trained about said sprockets, a cable extending through'said housing members and trained about said drums a rod extending transversely between sald side plates, a pawl pivoted upon said rod and having its active end eng cable with the teeth of the lower sproc et, and means for controlling the speed of rotation of said drums.

2. A device of the character described comprising upper and lower housing members, side plates secured to and connecting said members, shafts extending transversely through said housing members and through said side plates, drums journaled on said shafts, a sprocket wheel journaled on each shaft and secured to the adjacent drum, a chain trained about said sprockets, a brake drum journaled on the lowermost one of said shafts and rotatable with the drum and sprocket thereon, a rod extending trans- 13C versely of said side plates, a pawl pivoted upon said rod and having its active end engageable with the teeth of the lowermost sprocket, a lever pivoted upon said rod, and a brake band secured at one end to said lever and having its other end rigidly secured to one of said side plates.

3. A device of the character described comprising upper and lower housing members, side plates secured to said members, transverse shafts extending through said upper and lower housing members and through said side plates, cable engaging drums journaled upon said shafts, sprockets journaled upon said shafts and rotatable 15 withsaid drums, a chain trained about said sprockets, and a pair of platforms disposed at opposite sides of the device and including arms straddlingly engaging said side plates, the ends of the lowermost transverse shaft 20 projecting beyond said side plates and through said arms, said platforms having 7 their lower edges engagin the sides of the lower housin member w ereby to maintain said plat orm in horizontal position.

In testimony whereof I afiix my signature.

GHARLES EDWARD vMORGAN. 

